<div class="form-ajax">
<form class="AjaxForm" data-action="{:U()}" method="post" >
    <table class="bordered">
		<block name="form"></block>
        <tr>
        	<th></th>
            <td><input type="submit" class="btn-big btn-blue" value="提交"></td>
        </tr>
    </table>
</form>
</div>
<block name="extra"></block>

<script type="text/javascript">
    seajs.use(['ajax'],function(ajax){
        ajax.valid();
    });
</script>